baber/WOPTO huggingface dataset:
Patent GB-1467979-A (GB)
Title: Grate assembly for a boiler
IPC: F24H9/18
Filed: 1974-04-11
Abstract: 1467979 Furnace grate assembly; boilers PARKINSON COWAN GWB Ltd 11 April 1975 [11 April 1974] 16133/74 Headings F4B and F4A A grate assembly 19 for a furnace or boiler, comprises a lower set of fire bars 40 which are fixed relative to a support structure 39 and an upper set of fire bars 41 which are mounted for longitudinal sliding movement relative to the fire bars 40 from the grate closed position in Fig. 2 to the grate open position in Fig. 3. The fire bars 41 are connected by an assembly 42 to an eccentric 45 driven through a clutch unit 47 from a flywheel 48 and electric motor 50. The upper fire bars 41 are spaced by parts 55 and are connected by tie rods through bores (55a), Fig. 6 (not shown), to the assembly 42. They have air supply passages 53 and 54 and may have an inclined surface 52 to improve the scraping action. The lower fire bars 40 may have steam passageways, and a steam lance 70 may be provided beneath the grate 19. Steam is supplied from the manifold 68 and is used to prevent clinker formation. To de-ash the fire bed, the air supply to the grate is switched off and the upper bars 41 reciprocated to scrape ash from the fire bed. Ash removing conveyer screws 30 may be fitted to move ash to a discharge point 35. Two grate assemblies may be used side by side with the position of the upper and lower fire bars staggered in a furnace tube (14), Fig. 1 (not shown), in a cylindrical fire tube boiler which may have one or more furnace tubes.
Patent GB-302670-A (GB)
Title: Improvements in or connected with means for converting rotary into reciprocating motion and vice versa
IPC: F16H21/36
Filed: 1927-06-17
Abstract: 302,670. Shepard, A. F. June 17, 1927. Eccentric-actuated pumps. -In pumps &c. symmetrical about a mid-plane at right-angles to the axis, the piston crosshead or crossheads move in straight guideways and carry pivoted arcuate slippers engaging eccentric circular grooves formed in a disc or discs. In a single cylinder pump, Fig. 1, the crosshead 8 moves in a central straight guideway 2 and carries at the ends of a pin 9, slippers 10 engaging circular grooves 12 in opposed discs 4 secured to a shaft 3. In an eight-cylinder pump, Figs. 5 and 6, a pair or intersecting circular grooves 12 is formed on each face of a central rotor or disc 4, the slippers being carried by separate crosshead members 8 guided in straight grooves 2 on the inner faces of the casing. Either the shaft or the casing may rotate. The circular grooves may be cut right through the disc thereby separating the interior, solid parts which are retained in position by a large number of flanged slippers. The straight guides may be formed by an inward extension of the cylinder walls, the crossheads being of the same diameter as the pistons. The slippers may be provided with white metal insets to reduce friction and with concave ends to distribute lubricant. The straight guideways need not be radial. Specifications 14511/86, [Class 80, Mechanism &c.], 29367/09, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], and 8036/11 are referred to.
Patent GB-476575-A (GB)
Title: Improvements in score counters and indicators for games
IPC: A63B71/06
Filed: 1936-06-10
Abstract: 476,575. Games -scoring apparatus. METHERELL, H. O. June 10, 1936, No. 16191. [Class 132 (ii)] [Also in Group XIX] A games-scoring device comprises manually-set racks engaging pinions connected by ratchet pawls to totalizer wheels, the racks being provided with item - indicating means and being retained in set position to show the last item set until they are released immediately previous to the setting of a new item. Two identical totalizers are provided each comprising units, tens and hundreds wheels 8, 9, 10. Each numeral wheel is freely mounted on a boss 5 having teeth 14, 15, the bosses being driven by racks 23 engaging the teeth 15. There is one rack for each wheel and each rack has attached to it a slide 25 having numbered apertures exposed through a slot 26, a stylus being inserted into an aperture and the slide pushed downwards to register a score. The corresponding boss is thus rotated and drives its numeral wheel by teeth 14 engaging a ratchet pawl 11 pivoted to the numeral wheel. The set item is displayed by figures on the back of the slides 25 viewed through apertures 40, the total on the numeral wheels being viewed through apertures 28. Springs 22 tend to return the slides 25, but this is prevented until a button 56 is pressed inwards to rock pawls 51 away from the teeth 14 of the bosses 5. The numeral wheels are held from backward rotation by pawls 52 engaging teeth 53 on the edges of the numeral wheels, the ratchet pawls 11 allowing relative rotation between the bosses 5 and the numeral wheels. The wheels may be so graduated that the items are subtracted instead of being added. Preventing overthrow. If the stylus is operated rapidly it strikes a plate 75, Fig. 4, at the bottom edge of the slot 26 sufficiently violently to depress this plate against the action of the spring 74 and bring projections 76 carried by the plate into the path of teeth 53 on the numeral wheels to stop overthrow of these wheels. Overthrow at transfer is prevented by means described below. Transfer mechanism. A transfer projection 165, Fig. 3, on a numeral wheel rocks an arm 64 of a two-armed lever 64, 66 whereby the other arm engages a tooth 53 of the next higher wheel and advances this wheel. The end of the arm 66 consists of a cam-shaped spring- controlled plunger whereby when the lever 64, 66 is retracted to normal position by a spring 68, the plunger is depressed to pass under the tooth 53 of the higher wheel, this higher wheel being held from rotation by its pawl 52. Overthrow is prevented by a lever 62, Fig. 4, rocked by the transfer projection 165 so that its end 70 engages between the teeth 53 of the higher wheel after this wheel has been moved through one step.
Patent GB-767219-A (GB)
Title: Improvements in lubricators for sprocket chains
IPC: B65G45/08
Filed: 1954-06-11
Abstract: 767,219. Lubricating sprocket chains. CLARKE, CHAPMAN & CO., Ltd., and HEMSLEY, T. B. April 1, 1955 [June 1, 1954], No. 16201/54. Class 12 (3). A sprocket chain lubricator comprises a rotatable carrier mounted coaxially with a sprocket wheel carrying the chain to be lubricated and provided with at least one lubricantcharging unit, means being provided for synchronizing the rotation of the carrier with that of the sprocket wheel to bring the charging unit opposite one of several lubricant-receiving nipples on the chain, means for moving the charging unit into, and from, engagement with the opposed nipple, and means for forcing lubricant through the charging unit into the nipple. In the construction shown, an annular housing 11 is rotatable about a sleeve 13 on a stationary shaft 14 on which the sprocket wheel 15 carrying chain rollers revolves. A clutch handle 16 can be operated to slide the sleeve 13 axially whereby pins 19 on the housing may register with holes 21 in the sprocket wheel to couple the housing and sprocket wheel together. The wall 20 of the housing is provided around its periphery with nipple connectors 23 each slidably mounted in a plunger 24. As the housing and sprocket wheel rotate together the connectors 23 register with nipples 27 of the chain rollers 28. Each plunger 24 is moved axially, against the pressure of a spring 29, by an arm of a bell-crank lever 30, the other arm of which has a roller 33 engaging a circular cam path 34 formed around the face of a disc 35 fixed on the sleeve 13. The connector 23 thereupon engages and centres itself upon an opposed nipple 27. At the same time an injector ram 36 is actuated by a striking cam 37 on the disc 35 to force lubricant through a spring-loaded valve 38 into a flexible pipe 39 from which the lubricant is fed to the nipple 27. Lubricant is fed to the ram 36 by means of a flexible pipe 41 connected through a manifold 42 and a flexible pipe 45 to a supply from a pump. In a modification only one charging unit is provided.
Patent GB-457782-A (GB)
Title: Improvements in or relating to tubular heat exchange apparatus
IPC: F28D1/03
Filed: 1935-06-04
Abstract: 457,782. Tubes for heat-exchangers. BOSSART, O. A., and EBERHARDT, E. G., 17th Street, Racine, Wisconsin, U.S.A. June 4, 1935, No. 16207. [Class 64 (iii)] The flat tubes of automobile radiators &c. are formed with indentations 19. The indentations in the opposite sides of the tubes may be inclined as in Fig. 4, or they may cross one another as in Fig. 7. In a modification, the indentations in the opposite sides may be formed as in Fig. 8. The tubes are preferably made of sheet-metal in which the indentations are formed prior to the bending of the sheet to the form shown in Fig. 5.
Patent GB-723816-A (GB)
Title: Improvements in or relating to cutting sheet material
IPC: B26D3/28
Filed: 1953-06-29
Abstract: 723,816. Splitting-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., SMART, W. A., and SMITH, F. R. June 29, 1953 [June 28, 1952], No. 16332/52. Class 31 (1). A machine for cutting a sheet 12 of fibre board into bevelled strips to be used for making shoe parts, e.g. counters, comprises a series of spaced guides A to G, Fig. 1, each comprising vertically-spaced blocks 52, 54, Fig. 3, provided respectively with flanges 100, 102 between which the sheet is passed so that it is presented in an undulatory form to a band knife 28. The blocks 52, 54 are mounted on horizontal beams 42, 44 so as to be adjustable horizontally, vertically, and, if desired, angularly thereof, downward displacement of the block 54 being resisted by springs 88. The beam 42 is adjustable vertically with respect to the beam 44. shoe part blanks are cut from the bevelled strips by means of a cutting-out press and each blank is then skived, to provide a bevelled margin throughout, by means of a die roll having a cavity co-operating with a fixed knife as described in Specification 14725/02, [Class 31], which is referred to. A modified form of guide is described.
Patent GB-711063-A (GB)
Title: Improvements in and relating to stereo-photogrammetric plotting apparatus
IPC: G01C11/00
Filed: 1951-07-11
Abstract: 711,063. Stereo - photogrammetric apparatus. ODLE, J. E. July 10, 1952 [July 11, 1951], No. 16439/51. Classes 97(1) and 97(2) Plotting. apparatus of the projection type comprises a framework, a projector-supporting bar rigidly fixed thereto to form a rigid unitary structure and a flat-topped table adjustably mounted on that structure to receive the projected images. In the form shown a cubical framework 11 supports uprights 15 which carry the projectorsupporting bar 22, alternative holes being provided for fixing the bar at different heights. The individual projectors have rack-and-pinion adjustments along the bar and horizontally at right-angles to it. Each projector has adjustments for rotating the transparency and tilting the objective. The casing 25 contains the electrical supply components and a blower which supplies cooling air for the projectors through a duct 34. Switches 29 and regulators 31 for the lamps are supported on the framework 11. The table 17 is supported on three ballended bevelling screws 18 engaging respectively a socket, a groove and a flat surface located at the front corners of and the centre of the rear edge of the table. After levelling the rear corners of the table are supported by screws 19. Several units, as shown, may be juxtaposed and secured by screws 47, the projector bars being located in line by dowel blocks 46. To assist alignment the frame 11 has levelling screws 13 near the legs 12.
Patent GB-453198-A (GB)
Title: Improvements in or relating to multi-conductor electric telephone cables for carrier current communication
IPC: H01B11/00
Filed: 1935-03-01
Abstract: 453,198. Cables. STANDARD TELEPHONES & CABLES, Ltd., BAGULEY, E., and LONG, A. L., 63, Aldwych, London. March 1, 1935, No. 16506/36. Divided out of 453,124. Drawings to Specification. [Class 36] A multi-conductor telephone cable for carrier current working comprises two or more layers of twisted cores (pairs, quads, &c.) enclosed in a lead sheath, the individual cores in the cable lay-up being so stranded together that each core follows a path with respect to the lead sheath in and out of the cable lay-up which in no way distinguishes it from the other cores whereby the influence of the lead sheath upon the various cores at carrier frequencies is substantially the same. From two to six cores may be stranded to form a primary unit, a number of primary units being stranded to form a secondary unit, the secondary units being stranded to form a tertiary unit and so on. The stranded units may be screened by wrappings of foil or metallized paper. The cores and units are stranded with a lay not exceeding one thousandth part of the core propagation wavelength for the highest carrier frequency transmitted. The units may be wrapped with paper, cotton or string and paper fillers may be used.
Patent GB-550304-A (GB)
Title: Improvements in electric induction furnaces
IPC: H05B6/20
Filed: 1941-12-23
Abstract: 550,304. Electric induction furnaces. AJAX ELECTRIC FURNACE CORPORATION. Dec. 23, 1941, No. 16540. Convention date, Sept. 19. [Class 39 (iii)] An electric induction furnace for melting has a plurality of melting channels depending from the hearth, each associated with a separate primary coil and with an iron core which is threaded through the coils and melting channels whereby the circulation effect in the channels is increased. In the case of a single coil 1 and secondary loop 5 symmetrically placed, no mechanical force is exerted on the secondary loop except radially outwards at every point. If the loop is nearer one end of the coil a force is exerted tending to push it out of the electromagnetic field. If the loop is inclined as shown, the mechanical force is greater whereby it is near the end of the coil. If two secondary loops are arranged on a single coil or on separate coils there is little attractive force between them unless the loops are brought closer together. If the secondary loops are inclined as shown, the forces are greatest where they are close together. Fig. 4 is a cross sectional plan of a furnace in which two melting channels 7 are inclined to one another, and on separate primary coils 8 with a common iron core 9. The cross section of the channels is smaller where they are closer together. The effect of all the mechanical forces is to cause a circulation in the loops downwards through the parts which are close together. The loop sections may be joined together at these parts. Four loops may be associated with a single iron core in the form of a ring (Fig. 5, not shown). In operating the furnace, the voltage on the primary coil may be varied or the primary coil may be moved relatively to the secondary loop either mechanically or electrically, the latter by selective tappings on the coil, whereby the circulation may be controlled.
Patent GB-558456-A (GB)
Title: Improvements in and relating to laundry washing machines
IPC: D06F37/30
Filed: 1941-12-23
Abstract: 558,456. Washing-machines. POINTON, J. E., DEWHURST, F., and BAKER PERKINS, Ltd. Dec. 23, 1941, No. 16560. [Class 138 (ii)] The cylindrical or drum casing of a washing-machine having an internal rotary cage has conduits for conveying washing water and solutions formed integral with the casing which forms one wall of the conduits and a water level control and vent is formed integral with one end of the casing. Thus a two-part casing has one end wall 1 integral with a conduit 32 leading from a supply aperture 33 for washing water to a hollow trunnion surrounding ring 14 and through conduit 34 and a longitudinal conduit 35 and conduit 36 to the hollow chamber round the other trunnion of the cage 2. The conduit 38 receiving the washing solution from a lidded hopper, not shown, is formed in one half of the casing. The two halves of the casing are flanged at 3 for bolting together and may be spigoted or otherwise formed to prevent leakage. The charging door opening 30 is formed a half in each part and a pivoted jamb may be fitted to receive the edges of the doors which are on hinges tangential to the casing. Each casing has a guard flange 12 for the cage trunnion which runs on roller bearings in a cap 9. A disc 16 throws off water passing the hollow boss 13 of the cage, the boss having holes 15 to receive water from the ring 14. The guard flange 12 has an outlet 18 leading to a drain conduit 19 An electric reversing motor 21 may be employed to drive through a clutch 22 and reducing gear 25, 26 the toothed end plate 17 of the rotating cage.
Patent GB-1456910-A (GB)
Title: Mould apparatus
IPC: B29C33/04
Filed: 1974-04-16
Abstract: 1456910 Moulds DART CONTAINER CORP 16 April 1974 [13 April 1973] 16574/74 Heading B5A [Also in Division F2] A mould for forming plastics articles from expanded resin beads, comprises a male element 12 and female element 15 to define a cavity 13 which can be filled via an inlet 14, and passageways 18, 19 connecting with an annular groove 22 to supply heating steam, or ejecting air to the cavity 13, the passageways being closed by an   elastic check-valve ring element 23 which prevents the beads from blocking the ends of the passageways. In Figs. 6 to 9 a flat ring (27) is also fitted to control flow through ports (26). More than one ring element can be used.
Patent GB-796693-A (GB)
Title: Improvements relating to pressure or vacuum vessels
Inventor: LOUSLEY NORMAN WAYLAND
IPC: B01J3/03
Filed: 1955-06-10
Abstract: 796,693. Remotely controlled fastenings. FOSTER, YATES & THOM, Ltd., and ALLEN & HANBURYS, Ltd. June 6, 1956 '[June 10, 1955], No. 16718/55. Class 44 [Also in Groups XVIII and XXIX] Valve and door interlocking means for pressure and vacuum vessels comprise a spindle for operating door locking means carrying discs each having a radial slot and valve operating spindles each having a disc with a radial slot arranged to. mesh with one of the discs on the door locking spindle so that the valves can be operated only when the door is locked and the door can be opened only when the valves are in the appropriate position. In a sterilizer the spindle 11 for operating the door locking mechanism is rotated by a handwheel 2 and carries discs 14, 15 each provided with a radial slot. Handwheel 3 operates a main steam valve 4 and handwheel 5 a vacuum breaker valve 6. The spindle 19 of .handwheel 3 by means of gears 21, 22 rotates a spindle 23 carrying a disc 24 also provided with a radial slot, and the spindle 26 of handwheel 5 carries a disc 28 provided with a radial slot. Discs 24, 28 are at right angles to discs 14, 15 and are so disposed that one disc can enter the radial slot in the other. Consequently valve 4 can be operated only when the slot in disc 14 is opposite disc 24. Discs 15, 28 must be in a similar relationship before the handwheel 5 can be turned to operate valve 6. To line up the slots in discs 14. 15 with discs 24, 28 spindle 11 is turned to the " door locked position." A disc 16 on spindle 11 is-connected to the door locking, mechanism. To permit the door to be unlocked the two valve operated discs 24, 28 must be in a position to allow discs 14, 15 to rotate:
Patent GB-103979-A (GB)
Title: Improvements in or relating to Furnace Fronts for Liquid Fuel Furnaces.
IPC: F23D11/00
Filed: 1916-11-22
Abstract: 103,979. Thornycroft & Co., J. I., Donaldson, T., and Mackie, R. Nov. 22, 1916. Liquid-fuel furnaces; doors; dampers.-comprises detail improvements in the air-supply and door fittings and door fastenings of a steamboiler or like oil-fired furnace. The furnace front b carries a rectangular air-supply casing e, in and on which are mounted the air cone v, the door i, and flap valves g counter-weighted so as normally to leave open four inlet valves f. The door i is dished to receive the sprayer u, which is attached to a seating t. The door is hinged at j and is secured by fastenings o, which are pivoted at m and movable between stops p, q, and are arranged so that the act of unfastening the door causes tail-pieces r to move the dampers g about their hinges g<1> and thus to close the air inlets f before the door is opened. The cone v may be perforated. Ignition and observation openings x, y are fitted. The device, or the groups of them arranged at the front of a marine boiler, may be arranged in a forced-draught air trunk.
Patent GB-1432673-A (GB)
Title: Centrifugal pumps
IPC: F04D29/44
Filed: 1973-04-07
Abstract: 1432673 Centrifugal pumps LENINGRAD ORDENA LENINA POLITEKHNICHE INST IM MI KALININA 7 April 1973 16790/73 Heading F1C In a radial guide vane assembly of a centrifugal pump, having at least six vanes forming diffuser ducts, each diffuser duct has a radially-inner entry portion 5 opening into a radially-outer exit portion 6, the diffuser expansion angle having a first value throughout the entry portion and a second greater value throughout the exit portion, the expansion in the entry portion being 50 to 60% of the total expansion. This permits the radial size to be reduced without the efficiency, delivery, total head and caritation characteristics being affected. The exit portion 6 has an expansion angle # of 20 to 30 degrees which is larger than the expansion angle α of the entrance portion. α is 10 to 12 degrees where the entrance 5 expands in one plane only as shown, or 6 to 8 degrees where it expands in both planes.
Patent GB-154649-A (GB)
Title: Adjustable combined seat back and desk
IPC: A47C7/70
Filed: 1919-07-05
Abstract: 154,649. Toyne, S. M., and Penty, r. T. July 5, 1919. Seats convertible into desks. - In a seat, the back of which can be tipped up to serve as a desk, the back D has projections E running in grooves B in the members A, and is held in either of the positions shown in Figs. 1 and 2 by the stops C, F. Reference has been directed by the Comptroller to Specifications 14594/87 and 21288/12.
Patent GB-581316-A (GB)
Title: Improvements in centrifugal apparatus for extraction of dust and tar from gases at high temperatures
IPC: B04C5/20
Filed: 1944-09-05
Abstract: 581,316. Centrifugal separators. BALFOUR & CO., Ltd., H., BURNS, W. L., and BUREAU, A. C. Sept. 5, 1944, No. 16909. [Class 23] Dust and tar are separated from hightemperature gases in a cyclone chamber 1 provided with a water jacket 8, a number of spray devices 12 to wash the walls, and vertical baffles 13 at the mouth of the clean gas outlet 3 for the purpose of removing the last traces of dust and tar. Hot gas liquor is sprayed through the apparatus from 12. The water from the jacket 8 may be used for boiler feed, or other purposes. The jacket may be welded on to the cyclone and mav contain baffles. Water flows from an inlet 10 to an outlet 11. Tar and liquor flow into a tank 5.